Another way to make your voice waver is to use melisma. Melisma is a vocal technique that involves singing a single syllable over multiple notes. To create melisma, start by singing a note on a single syllable. Then, quickly move up or down in pitch while holding the same syllable. You can also add vibrato to melisma to create a more complex and expressive sound.
Finally, you can also use portamento to make your voice waver. Portamento is a vocal technique that involves sliding from one pitch to another. To create portamento, start by singing a note. Then, slowly slide up or down in pitch until you reach the desired note. You can also add vibrato to portamento to create a more expressive sound.
By using these different vocal techniques, you can create a variety of different vocal effects that can add interest and expression to your singing. Experiment with different combinations of vibrato, melisma, and portamento to find the sounds that work best for you.